FSGM0765R Fairchild Semiconductor, FSGM0765R Datasheet - Page 12

• Manufacturer Part Number: FSGM0765R
• Description: The FSGM0765R is an integrated Pulse Width Modulation (PWM) controller and SenseFET specifically designed for offline Switch-Mode Power Supplies (SMPS) with minimal external components
• Manufacturer: Fairchild Semiconductor

© 2009 Fairchild Semiconductor Corporation
FSGM0765R • Rev. 1.0.2
Typical Application Circuit
Key Design Notes:
1.
2.
1. Schematic
NTC101
5D-11
G3SBA60
BD101
The delay time for overload protection is designed to be about 30ms with C105 (27nF). OLP time between 25ms
(22nF) and 50ms (43nF) is recommended.
The SMD-type capacitor (C106) must be placed as close as possible to the V
abrupt pulsating noises and to improve ESD and surge immunity. Capacitance between 100nF and 220nF is
recommended.
LCD TV, Monitor
1
Power Supply
Application
275VAC
275VAC
150nF
1.5M
220nF
C102
C101
R101
LF101
20mH
2
1W
4
3
120µF
C103
400V
3.15A
FUSE
250V
F101
R102
75k
C105
27nF
100V
Figure 24. Schematic of Demonstration Board
R103
43k
Input Voltage
1W
5
6
4
85 ~ 265V
FSGM0765R
V
N.C.
FB
STR
GND
2
Drain
V
CC
3.3nF
C104
630V
1
3
1N4749A
ZD101
AC
R104
0.5W
62
220nF
C106
SMD
RGP15M
D101
C107
47µF
12
50V
UF 4004
D102
Rated Output
12.0V(3.0A)
5.0V(2.6A)
1
2
3
4
5
EER3019
4.7nF
C301
FOD817B
T101
Y2
IC301
10
6, 9
7, 8
6, 9
MBR20150CT
FYPF2006DN
2200µF
C204
D201
D202
10V
820µF
C201
25V
CC
R201
330
pin to avoid malfunction by
1000µF
KA431LZ
C205
16V
IC201
820µF
C202
1.2k
R202
25V
L201
5µH
1000µF
R203
18k
L202
5µH
Rated Power
C206
820µF
16V
C203
25V
55W
C209
43nF
100nF
C208
SMD
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100nF
C207
SMD
R204
R205
8k
8k
14V, 3A
5V, 2.6A